KEUFFEL & ESSER NO. 4161 SLIDE RULE IVORITE COMES WITH MANUAL AND BOX USED-MANUAL IS BENT IN HALF TO FIT IN BOXPayments must be received within 7 days of auction closing. All items will be shipped

 

KL-1 Circular Slide Rule description This CIRCULAR SLIDE RULE (model KL-1) is 50 millimeters in diameter (approximately 2"). It is intended for performance of trigonometric and mathematical operations

 

Hello, and thanks for looking. Please excuse any not-so-great pics; still getting the hang of it. This is a very nice vintage General Electroc phototvoltaic cell, model 8PV-1, from the 1960s. It measu

 

this is a use unit it dose have some dust on it it is sold as seen in the pics and will come the the original case both item do have some wear as seen in the pic s

 

Normal 0 0 1 104 597 Jay Glickman 4 1 733 10.260 0 0 0 Stunning Medical Wall Chart with functional pull-down mechanism, in excellent vintage condition. Very minor signs of age and use; no tears or rip

 

This is a 126 mixed lot of drafting and art triangles, French curves, protractors, and templates. 42 new triangles and curves in wrap 53 used triangles various sizes many new without wraps 13 template

 

Rare Antique Yellow Tinted Glass Horn Cased Folding Lens Loupe Click the photographs to enlarge. Colours may differ due to any flash used. I combine lots so please wait for my invoice BEFORE you pay.

 

communitywarehouse Store Vintage Marine Inclinometer - Collectible - Ships Tool Description: Vintage marine inclinometer. This ship's measuring tool is made from brass and 3 glass liquid filled tubes

 

Souvenir copper spoon. Bowl reads Columbian Expostion Chicago 1893. The handle reads Lake Superior Metal. Measures 8.5 cm in length.

 

UP FOR BID WE HAVE A NICE LOT OF VINTAGE DRAFTING PENS. THIS LOT IS IN GOOD CONDITION. I DO NOT KNOW HOW TO WORK OR FILL THE PENS SO I DID NOT TRY. THE LOT IS AS FOLLOWS KOH-I-NOOR RAPIDOGRAPH SET - 3